Lath-board.



tra w SILAS IVI. FORD, OF ST. PAUL, MINNESOTA.

:BATH-BOARD.

Specification of Letters Patent.

Patented Ang. *7, 1917.

Application led August 21, 1916. Serial N o. 116,145.

To all whom it mag/concern:

Be it known that I, SLLAS M. FORD, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented. certain new and useful Improvements in Lath-Boards, of which the following is a specification.

One object of my invention is to provide in a lath-board, simplified means for stiffening said lath-board longitudinally.

Another object of my invention is to provide in a lath-board, simplied means for stiffening said lath-board longitudinally by placing stiffening means in a series of slots cut in the corrugations of the board, and furthermore provide means for sealing the slots after the stiifening means has been placed therein.

Another object of my invention is to provide in a lath-board stiffened by the longitudinal means placed in slots cut in the corrugations of the board, means for preventing the stiffening means from slipping from position.

Another object of my invention is to provide in a corrugated lath-board, means for creating additional air space under said lath-board when placed on a wall.

IVith these and incidental objects in view the invention consists of certain novel features of construction and combination of parts, the essential elements of which are hereinafter described with reference to the drawing which accompanies and forms a part of this specification.

In the drawino` Figure 1 is an isometric view of the preferred construction of my invention, and Fig. 2 is a similar view of a modification thereof.

In Fig. 1, the sheet 1 of water-proof material has a strand 2 laid into the slots 3 formed in the `dove-tailed shaped faces on one side of the sheet to a depth substantially equal to that of the width of the flat wire.

When the wire has been so positioned, a strip or ribbon l of suitable cloth or Inaterial is cemented or glued over the slot and strand, therebyI preventing any longitudinal displacement of the corrugations, the movement of the strand itself, and also serving as a seal for the slot in which the strand has been laid.

This ribbon may be of considerable thickness and serves to space the faces of the sheet from the Ywall on which the board is used, and thereby maintains an air space behind the entire sheet, in addition to the air spaces 5 formed by the shape of the corrugated sheet.

In the modification shown in Fig. 2 the sheet is corrugated in the ordinary style instead of in the dove-tailed formation shown in Fig. l, and a strand 6 is laid in a similar slot, as heretofore described, and the ribbon 7 serves the same purpose as the ribbon t shown in Fig. 1.

The strand 8 is shown laid parallel with the plane of the corrugated sheet instead of transversely, as strands 2 and 6 are shown, and it is evident that a strand may be placed in either position within the scope of this invention, and also that round wires or fibrous cords may be used instead of the fiat strands.

While I have described my invention and illustrated it in several particular designs, I do not wish it understood that I limit myself to these constructions as the application of my invention may be varied in many ways within the scope of the following claims.

Claims:

1. In a lath-board, the combination of a sheet of suitable material formed into corrugations, a series of slots extending transversely across the face of each of said corrugations, reinforcing means positioned in said series of slots, and a ribbon cemented over said reinforcing means for maintaining the relative position of said corrugations and said stiifening means.

2. In a lath-board, the combination of a sheet of suitable material formed into a corrugated shape, a series of transverse slots across the face of said corrugations, a stiffening means extending longitudinally of said sheet and positioned in said series of slots, and means associated therewith for sealing said slots over said stidening means.

3. In a lath-board, the combination of a sheet of suitable material corrugated into a dove-tailed shaped formation having alternate lath-like faces and depressions on either side thereof, webs connecting the series of faces on each side, a series of slots through the lath-like faces on one side, and extending downwardly into the webs on that side, and stiifening means extending longitudinally of Said sheet and positioned in said series of slots.

4- In a laila-board, the Combination 0f e extending downwardly into the WebS- 011 sheet of suitable material corrugated into that side, stiffening means extending longia dove-tailed shaped foirnation having tudinally of said sheet and positioned in 1, alternate lath-like faces and depressions on said series of slots and a ribbon cemented 5 either side thereof, Webs connecting the to said series of faces over said stffening series of faces on each side, a series of slots means, thereby sealing said series of slots. through the iaith-like faces on one side SILAS M. FORD.

Copies of this patent may bek obtained for ve cents each, by, addressing'the Commissioner of Iatente, Washington, 2D. C. 

